论文标题
非绝热驱动系统的量子热力学：电子 - 光子相互作用的影响
Quantum thermodynamics of nonadiabatically driven systems: The effect of electron-phonon interaction
论文作者
论文摘要
在这项工作中，我们研究了非绝热外部驾驶对电子系统的热力学的影响，该电子系统与两个电子导线并在有和没有阻尼的情况下耦合到声子模式。在缓慢驾驶的极限中，我们建立了量子热力学量的非绝热校正。特别是，我们使用扰动扩张研究了对电子总体，电荷电流和振动激发的一阶校正，并将结果与数值确切的运动层次方程（HEOM）方法进行比较。此外，HEOM分析均涵盖了弱和强的系统浴耦合方案以及慢速和快速驾驶极限。我们表明，对电荷电流的电子摩擦和非绝热校正为Franck-Condon效应和非共振隧道过程提供了明确的指标。我们还讨论了近似量子主方程方法的有效性以及使用HEOM从平衡中研究量子热力学的好处。
In this work we study the effects of nonadiabatic external driving on the thermodynamics of an electronic system coupled to two electronic leads and to a phonon mode, with and without damping. In the limit of slow driving, we establish nonadiabatic corrections to quantum thermodynamic quantities. In particular, we study the first-order correction to the electronic population, charge-current, and vibrational excitation using a perturbative expansion, and compare the results to the numerically exact hierarchical equations of motion (HEOM) approach. Furthermore, the HEOM analysis spans both the weak and strong system-bath coupling regime and the slow and fast driving limits. We show that the electronic friction and the nonadiabatic corrections to the charge-current provide a clear indicator for the Franck-Condon effect and for non-resonant tunneling processes. We also discuss the validity of the approximate quantum master equation approach and the benefits of using HEOM to study quantum thermodynamics out of equilibrium.
